1 files changed, 24 insertions, 0 deletions
diff --git a/javaparser-core/src/main/java/com/github/javaparser/ast/validator/SingleNodeTypeValidator.java b/javaparser-core/src/main/java/com/github/javaparser/ast/validator/SingleNodeTypeValidator.java
new file mode 100644
index 000000000..169849489
--- /dev/null
+++ b/javaparser-core/src/main/java/com/github/javaparser/ast/validator/SingleNodeTypeValidator.java
@@ -0,0 +1,24 @@
+package com.github.javaparser.ast.validator;
+
+import com.github.javaparser.ast.Node;
+
+/**
+ * Runs a validator on all nodes of a certain type.
+ */
+public class SingleNodeTypeValidator<N extends Node> implements Validator {
+    private final Class<N> type;
+    private final TypedValidator<N> validator;
+
+    public SingleNodeTypeValidator(Class<N> type, TypedValidator<N> validator) {
+        this.type = type;
+        this.validator = validator;
+    }
+
+    @Override
+    public void accept(Node node, ProblemReporter problemReporter) {
+        if (type.isInstance(node)) {
+            validator.accept(type.cast(node), problemReporter);
+        }
+        node.findAll(type).forEach(n -> validator.accept(n, problemReporter));
+    }
+}